The primary aim of the current research project is to establish whether the current Dutch vision screening in children aged 3-6 years old in PYHC can be improved by using plusoptiX, with regard to costs and screening performance.

BACKGROUND AND RELEVANCE
The primary goal of vision screening in young children is the detection of amblyopia, also referred to as “lazy eye”, and risk factors for development of amblyopia requiring treatment. Child vision screening, a task of Preventive Youth Health Care (PYHC) in the Netherlands, reduces the prevalence of amblyopia. Current Dutch vision screening tests are time consuming, difficult to administer in young children and probably of low prognostic value. Instrument-based vision screening (e.g. plusoptiX) on the other hand is quick, and requires minimal cooperation of the child and could therefore be more cost-effective. To date, none have studied the validity using the plusoptiX in the Dutch population of children aged 3-6 years old, during regular PYHC practice, and compared study outcomes with current practices.

AIM
The aim of the current research project is to establish whether the current Dutch vision screening in children aged 3-6 years old in PYHC can be improved by using plusoptiX, with regard to costs and screening performance. A secondary aim is to optimize standard YHC referral criteria as well as plusoptiX referral criteria for the Dutch PYHC-setting.